EP2556971B1 - Pneus de véhicule - Google Patents

Pneus de véhicule Download PDF

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Publication number
EP2556971B1
EP2556971B1 EP12176793.3A EP12176793A EP2556971B1 EP 2556971 B1 EP2556971 B1 EP 2556971B1 EP 12176793 A EP12176793 A EP 12176793A EP 2556971 B1 EP2556971 B1 EP 2556971B1
Authority
EP
European Patent Office
Prior art keywords
profile
circumferential
profile block
circumferential groove
groove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP12176793.3A
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German (de)
English (en)
Other versions
EP2556971A2 (fr
EP2556971A3 (fr
Inventor
Stefan Rittweger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Reifen Deutschland GmbH
Original Assignee
Continental Reifen Deutschland GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Publication of EP2556971A2 publication Critical patent/EP2556971A2/fr
Publication of EP2556971A3 publication Critical patent/EP2556971A3/fr
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Publication of EP2556971B1 publication Critical patent/EP2556971B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/0302—Tread patterns directional pattern, i.e. with main rolling direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
    • B60C11/1369—Tie bars for linking block elements and bridging the groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C2011/0337—Tread patterns characterised by particular design features of the pattern
    • B60C2011/0339—Grooves
    • B60C2011/0341—Circumferential grooves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C2011/0337—Tread patterns characterised by particular design features of the pattern
    • B60C2011/0339—Grooves
    • B60C2011/0341—Circumferential grooves
    • B60C2011/0344—Circumferential grooves provided at the equatorial plane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C2011/0337—Tread patterns characterised by particular design features of the pattern
    • B60C2011/0339—Grooves
    • B60C2011/0374—Slant grooves, i.e. having an angle of about 5 to 35 degrees to the equatorial plane

Definitions

  • the invention relates to a tread pattern of a pneumatic vehicle tire with a centrally positioned in the axial direction A circumferential groove and with both sides of this circumferential groove at least two in the axial direction A juxtaposed and each by a circumferential groove spaced from each other profile block rows, each arranged in the circumferential direction U of the vehicle tire one behind the other and are separated by oblique grooves of spaced apart tread block elements, wherein each tread block element of a tread block row in the circumferential direction in both the first and in the second of the two circumferential orientations is bounded in each case by a flank, respectively the groove wall directed towards the tread block element and the tread block element delimiting the respective circumferential orientation Oblique groove forms, wherein the oblique grooves each in the axial direction A in both the respective profile block row in the axial direction A bounding circumferential grooves m and along its axial extent in the direction away from the central circumferential groove axial direction A through the profile block row away, including an inclination
  • Such pneumatic vehicle tires are known.
  • pneumatic vehicle tire with a plurality of axially adjacent profile block rows or profile ribs.
  • a narrow design of such profile block rows or ribs thereby allows increased flexibility of the profile rib or the profile block elements of the profile block row around bending lines, which are directed in the circumferential direction.
  • the resulting joint effect facilitates the flattening of the profile during the passage of the tire lash, whereby comfort properties and rolling resistance are favored.
  • Due to the risk of tipping the tread block elements or ribs, which is also associated with the improved joint effect however, the contact with the road during handling maneuvers is adversely affected. They handling properties are impaired. Therefore, the ribs or profile block rows are usually designed to ensure good handling properties with correspondingly greater width at the expense of the resulting disadvantages for comfort and rolling resistance.
  • the discharge of the water is additionally effected via the circumferential grooves and in the case of block profiles via transverse or oblique grooves.
  • the invention has for its object to provide a tread pattern of a pneumatic vehicle tire with simple means, are made possible in the good rolling resistance and good comfort properties with good handling and noise properties without aquaplaning disadvantages.
  • each tread block element of a Profile block row in the circumferential direction in both the first and in the second of the two circumferential orientations is limited in each case by an edge which forms each of the profile block element directed groove wall of the respective circumferential orientation of the profile block element defining oblique groove, wherein the oblique grooves in the axial direction A in both the respective profile block row opens in the axial direction A delimiting circumferential grooves and along its axial extent in the direction away from the central circumferential groove axial direction A through the profile block row away, including an inclination angle
  • This design allows the tread pattern with a profile block row training. Due to the extension of each directed to the same in circumferential orientation side of the profile block element limiting edge in the axial direction to the central circumferential groove through to the next profile block row, the flank in the extension region by the adjacent profile block row from the profile block element separating the peripheral edge of the profile block element with a profile block element of By the same oriented inclination of the oblique grooves, the lands, the tread block elements and the oblique grooves on both sides of the central circumferential groove form a V-shaped structure with the favorable water drainage properties of a V-profile.
  • Maintaining the block profile structure of the tread pattern allows usual V-profiles the formation of relatively small transverse extension portions of the tread block elements and thereby maintaining good noise-forming properties.
  • the tread block elements of the tread block rows can be formed relatively narrow, whereby an improved joint effect of the tread block elements is effected and an improved Abplatten the tread block elements when passing through the tire lash can be enabled.
  • comfort and rolling resistance can be made particularly favorable.
  • the connecting webs with their sloping flanks not only cause an improved drainage of the water to the side, but cause a connection of the tread block elements just in the area between their included between oblique groove and circumferential groove tip, tilts tipping profile block element corners, which prevents buckling and improves the handling properties can be.
  • using the well-known block profile with its advantages in terms of noise generation a V-profile similar drainage and the associated improved water drainage properties also in achieving good rolling resistance and comfort characteristics narrow block profile rows with good handling properties possible.
  • a pneumatic vehicle tire according to the features of claim 4, wherein measured perpendicular to the extension direction of the flank through the circumferential groove maximum width b of the web in the web radially outwardly bounding surface with (1/5) B ⁇ b ⁇ (B) is formed, wherein B forms the maximum width of the profile block row measured in the axial direction A of the tire in the radially outer surface.
  • a pneumatic vehicle tire according to the features of claim 6, wherein the web with a in the radial direction R, starting from the circumferential groove radially outwardly bounding groove bottom outwardly measured height h with (1/2) P T ⁇ h ⁇ P T is formed, wherein P T forms the profile depth measured in the radial direction R in the circumferential groove.
  • a pneumatic vehicle tire according to the features of claim 8, wherein the width B 2 of the oblique groove is formed along its extent in the radially outer surface each with B 2 ⁇ B 1 , wherein B 1, the width of the circumferential groove along its extension in Circumferential direction in the radially outer surface forms, in which the oblique groove opens in the axial direction A to the central circumferential groove out. This can reduce the emission of noise.
  • FIGS. 1 to 3 show a tread pattern of a passenger car tire radial design in which in a known manner on one tire shoulder a shoulder profile band 1 of known type and on the other tire shoulder a shoulder profile band 2 of known type is formed, each in the circumferential direction U of the pneumatic vehicle tire over the entire circumference of the Pneumatic tire extend.
  • the shoulder profile bands 1 and 2 are for example -as in Fig. 1 shown - formed as a circumferential ribs of known type. In other - not shown - execution the shoulder profile bands are 1 and 2 each profile block rows of known type formed.
  • the ground contact width of the vehicle pneumatic tire in the operating state of the pneumatic vehicle tire on the rim extends in a known manner in the axial direction A of the pneumatic vehicle tire from the axial extension region of the shoulder profile band 1 into the axial extension region of the shoulder profile band 2.
  • a middle profile band area with the profile block rows 8, 9, 10 and 11 is formed between the two shoulder profile bands 1 and 2, a middle profile band area with the profile block rows 8, 9, 10 and 11 is formed.
  • the profile block row 8 is formed in the axial direction A of the shoulder profile strip 1 by a circumferentially extending over the circumference of the pneumatic vehicle tire and aligned in the circumferential direction U circumferential groove 4 of known type.
  • the profile block row 9 and the profile block row 8 are spaced in the axial direction A in a known manner by an over the circumference of the vehicle pneumatic tire extending and aligned in the circumferential direction U circumferential groove 5 from each other.
  • the profile block row 9 and the profile block row 10 are in the axial direction A by a central circumferential groove 3, which extends over the circumference of the vehicle pneumatic tire and is aligned in the circumferential direction U, spaced from each other.
  • the profile block row 10 and the profile block row 11 are spaced in a known manner in the axial direction A by an over the circumference of the vehicle pneumatic tire extending and aligned in the circumferential direction U circumferential groove 6 from each other.
  • the profile block row 11 and the shoulder profile strip 2 are spaced in a known manner in the axial direction A by an over the circumference of the vehicle pneumatic tire extending and aligned in the circumferential direction U circumferential groove 7 from each other.
  • the equatorial plane ⁇ - ⁇ is formed axially centrally in the circumferential groove 3.
  • the profile block row 11 is formed in a known manner from around the circumference of the vehicle pneumatic tire, arranged in the circumferential direction U behind the other and each spaced apart by a helical groove 19 profile block elements 15.
  • the profile block row 10 is distributed over the circumference of the vehicle pneumatic tire, arranged one behind the other in the circumferential direction U and in each case by a Oblique groove 18 spaced profile block elements 14 are formed.
  • the profile block row 9 is formed from distributed over the circumference of the vehicle pneumatic tire, arranged one behind the other in the circumferential direction U and each spaced apart by a helical groove 17 profile block elements 13.
  • the profile block row 8 is formed from distributed over the circumference of the vehicle pneumatic tire, arranged one behind the other in the circumferential direction U and each spaced apart by a helical groove 16 profile block elements 12.
  • the oblique grooves 16, 17, 18 and 19 are respectively rectilinearly and inclined at an angle ⁇ to the axial direction A inclined.
  • the oblique grooves 18 of the profile block row 10 extend from the circumferential groove 3 into the circumferential groove 6.
  • the oblique grooves 19 extend from the circumferential groove 6 into the circumferential groove 7.
  • the oblique grooves 17 extend from the central circumferential groove 3 into the circumferential groove 5.
  • the oblique grooves 16 extend from the circumferential groove 5 into the circumferential groove 4.
  • the oblique grooves 18 and 19 are inclined along their axial extent in the axial direction A from the central circumferential groove 3 to the shoulder rib 2 extending with a constant circumferential direction component in the in Fig.1 formed with an upwardly directed arrow shown circumferential orientation direction D.
  • the oblique grooves 17 and 16 along their axial extent in the axial direction A, starting from the central circumferential groove 3 in the direction of the shoulder band 1 are inclined towards a constant direction component in the circumferential orientation direction D.
  • the tread block elements 12, 13, 14 and 15 are formed outwardly in the radial direction R by a radially outer surface 28 which forms the road contact surface.
  • the circumferential grooves 4, 5, 6 and 7 and the oblique grooves 16, 17, 18 and 19 are each bounded in the radial direction R inwardly by a groove bottom 29.
  • the profile block elements 12 of the profile block row 8 are in the circumferential direction U in each case to the two the respective profile block element 12 towards limiting oblique grooves 16 out bounded by a profile block element edge, which respectively form the profile block element 12 facing groove wall of the respective oblique groove 16.
  • the in the circumferential orientation direction D the respective profile block element 12 in the circumferential direction U upstream profile block element edge is in Fig.1 designated as edge 20.
  • the profile block elements 13 of the profile block row 9 are bounded in the circumferential direction U of the pneumatic vehicle tire respectively to the two profile block element 13 limiting oblique grooves 17 by a Profilblockelementflanke, which forms each of the profile block element 13 facing groove wall of the oblique groove 17.
  • the in the circumferential direction U in the circumferential orientation direction D of each profile block element 13 upstream profile block element edge is in Fig. 1 designated as edge 21.
  • the profile block elements 14 of the profile block row 10 are bounded in the circumferential direction U of the pneumatic vehicle tire respectively to the two profile block element 14 limiting oblique grooves 18 by a Profilblockelementflanke, which forms each of the profile block element 14 facing groove wall of the oblique groove 18.
  • the in the circumferential direction U in the circumferential orientation direction D of each profile block element 14 upstream profile block element edge is in Fig. 1 designated as edge 22.
  • the profile block elements 15 of the profile block row 11 are bounded in the circumferential direction U of the pneumatic vehicle tire respectively to the two profile block element 15 limiting oblique grooves 19 by a Profilblockelementflanke, which forms each of the profile block element 15 facing groove wall of the oblique groove 19.
  • the in the circumferential direction U in the circumferential orientation direction D the respective profile block element 15 upstream profile block element edge is in Fig. 1 designated as edge 23.
  • the profile block elements 12 are bounded in the axial direction A to the circumferential groove 4 each by a profile block element edge, which forms the profile block element 12 facing groove wall of the circumferential groove 4.
  • the profile block elements 12 are bounded in the axial direction A to the circumferential groove 5, in each case by a profile block element edge, which in each case forms the groove wall of the circumferential groove 5 pointing toward the profile block element 12.
  • the profile block elements 13 are bounded in the axial direction A to the circumferential groove 5 each by a profile block element edge, which forms the profile block element 13 facing groove wall of the circumferential groove 5.
  • the profile block elements 13 are each bounded in the axial direction A to the circumferential groove 3 by a profile block element edge, which in each case forms the groove wall of the circumferential groove 3 pointing toward the profile block element 13.
  • the profile block elements 14 are bounded in the axial direction A to the circumferential groove 3 in each case by a profile block element edge, which in each case forms the groove wall of the circumferential groove 3 facing the profile block element 14.
  • the profile block elements 14 are each bounded in the axial direction A to the circumferential groove 6 by a profile block element edge, which forms in each case the groove block facing the profile block element 14 of the circumferential groove 6.
  • the profile block elements 15 are each bounded in the axial direction A to the circumferential groove 6 by a Profilblockelementflanke, which forms each of the profile block element 15 facing groove wall of the circumferential groove 6.
  • the profile block elements 15 are each bounded in the axial direction A to the circumferential groove 7 by a profile block element edge, which respectively forms the respective profile block element 15 facing groove wall of the circumferential groove 7.
  • the profile block element flanks of the profile block elements 12, 13, 14 and 15 each extend in the radial direction R, starting from the groove bottom 29 of the respective groove to the radially outer surface 28 of the associated profile block element 12, 13, 14 or 15.
  • the flank 20 is respectively rectilinearly extended through the circumferential groove 5 through and opens onto a tread block element 13 of the adjacent profile block row 9.
  • the flank 20 forms the flank of a web 24.
  • Der Bridge 24 extends in a straight line with its longitudinal extent starting from the profile block element 12 at the angle ⁇ to the axial direction A parallel to the flank 20 extending through the circumferential groove 5 through to the axially adjacent profile block element 13 of the profile block row 9 and connects this profile block element 13 of the profile block row 9 with the profile block element 12 of the profile block row eighth
  • the web 24 intersects the profile block element 13 delimiting groove wall of the circumferential groove 5 in a circumferential position between the two profile block element 13 in the circumferential direction limiting oblique grooves 17 at a distance from each of these two oblique grooves 17th
  • each flank 21 of the profile block elements 13 of the profile block row 9 in the axial direction A to the central circumferential groove 3 through the central circumferential groove 3 through straight up to the profile block row 10 axially delimiting groove wall of the circumferential groove 3 is extended and each forms a web 25 in the circumferential direction
  • the web 25 extends in a straight line and parallel to the flank 21 from the profile block element 13 of the profile block row 9 to the axially adjacent profile block element 14 of the profile block row 10 and thereby binds the profile block element 13 to the profile block element 14 ,
  • the web 25 opens into the profile block element flank of the profile block element 14 formed by the groove wall of the circumferential groove 3 in a peripheral position between the oblique grooves 18 delimiting the profile block element 14, in each case at a distance from both oblique grooves 18.
  • each flank 22 of the profile block elements 14 of the profile block row 10 in the axial direction A to the central circumferential groove 3 through the central circumferential groove 3 through straight up to the profile block row 9 axially delimiting groove wall of the circumferential groove 3 is extended and each forms a web 26 in the circumferential direction
  • the web 26 extends in a straight line and parallel to the edge 22 from the profile block element 14 of the profile block row 10 to the axially adjacent profile block element 13 of the profile block row 9 and binds the profile block element 14 to the profile block element 13 at ,
  • the web 26 opens into the through the groove wall of the circumferential groove 3 formed
  • each flank 23 of the tread block elements 15 of the tread block row 11 in the axial direction A to the central circumferential groove 3 through the circumferential groove 6 through straight up to the profile block row 10 axially delimiting groove wall of the circumferential groove 6 is extended and each forms a web 27 in the circumferential direction U
  • the web 27 extends in a straight line and parallel to the flank 23 from the profile block element 15 of the profile block row 11 to the axially adjacent profile block element 14 of the profile block row 10, thereby attaching the profile block element 15 to the profile block element 14.
  • the web 27 opens into the profile block element flank of the profile block element 14 formed by the groove wall of the circumferential groove 6 in a peripheral position between the oblique grooves 18 delimiting the profile block element 14 at a distance from both oblique grooves 17.
  • the profile block rows 8, 9, 10 and 11 are each formed with a width B measured in the axial direction A, which is dimensioned in the radially outer surface 28.
  • the circumferential grooves 4, 5, 3, 6 and 7 are each formed with a measured in the axial direction A width B 1 , which is measured in each case in the radially outer surface 28.
  • the oblique grooves 16, 17, 18 and 19 are formed with a width B 2 , which is dimensioned in each case perpendicular to the main extension direction of the respective oblique groove in the radially outer surface 28.
  • the webs 24, 25, 26 and 27 are each formed along their extent by the respective associated circumferential groove 5, 3 and 6 therethrough with a constant width b, which is dimensioned in each case in the radially outer surface 28.
  • the width b of the webs 24 is dimensioned perpendicular to the main extension direction of the web 24 and thus to the main extension direction of the flank 20.
  • the width b of the webs 25 is dimensioned in each case perpendicular to the main extension direction of the webs 25 and thus perpendicular to the main extension direction of the flank 21.
  • the width b of the webs 26 is in each case dimensioned perpendicular to the main extension direction of the webs 26 and thus perpendicular to the main extension direction of the flank 22.
  • the width b of the webs 27 is in each case dimensioned perpendicular to the main extension direction of the webs 27 and thus perpendicular to the main extension direction of the flank 23.
  • the width b of the ridges is formed with (1/5) B ⁇ b ⁇ (1/2) B.
  • the width b is formed with 5 mm ⁇ b ⁇ 10 mm.
  • the width B of the profile block rows is formed with 15 mm ⁇ B ⁇ 17 mm.
  • the groove width B 1 of the circumferential grooves 4,5,3,6 and 7 is formed 1 ⁇ 12 mm each with 5 mm ⁇ B.
  • the groove width B 2 of the oblique grooves 16,17,18 and 19 is formed 2 ⁇ 6 mm respectively with 4 mm ⁇ B.
  • the groove widths B 1 and B 2 are formed with B 2 ⁇ B 1 .
  • FIG. 1 shows a further embodiment in which the tread block elements 12 are additionally extended in each case at the opposite in the circumferential direction U of the flank 20 edge of the tread block element 12 axially outwardly to the shoulder profile strip 1 through the circumferential groove 4 therethrough and in turn also form the flank of a web which extends through the circumferential groove 4 and connects the tread block element 12 with the shoulder profile band 1.
  • the flank forms the web of the web which delimits the web in the direction of orientation D and which is the boundary of the web.
  • the profile block elements 15 are additionally each at the in Circumferential direction U of the flank 23 opposite flank of the tread block element 15 are axially rectilinearly extended towards the shoulder profile strip 2 through the circumferential groove 7 and in turn also form the flank of a web which extends through the circumferential groove 7 and the profile block element 15 with the Shoulder profile band 2 connects.
  • the flank forms the web of the web which delimits the web in the direction of orientation D and which is the boundary of the web.
  • These webs formed in the circumferential grooves 4 and 7 are formed with a constant web width b.
  • the webs each extend from the groove bottom 29 in the radial direction R outwardly over a height h up to the web radially outwardly bounding surface 28.
  • the web height h with (1/2) P T ⁇ h ⁇ P T wherein P T forms the tread depth measured in the radial direction R in the respective circumferential grooves 4, 5, 3, 6 and 7, respectively.
  • the tread depth is the radial distance from the groove bottom 29 to the radially outer surface 28 of the profile block rows adjacent to the respective circumferential groove.
  • P T forms the tread depth measured in the radial direction R in the respective circumferential grooves 4, 5, 3, 6 and 7, respectively.
  • the tread depth is the radial distance from the groove bottom 29 to the radially outer surface 28 of the profile block rows adjacent to the respective circumferential groove.
  • P T forms the tread depth measured in the radial direction R in the respective circumferential grooves 4, 5, 3, 6 and 7, respectively.
  • the tread depth is the radial distance from the groove bottom 29 to the radi

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  • Tires In General (AREA)

Claims (10)

  1. Profil de bande de roulement pour bandage pneumatique pour roue de véhicule, présentant une rainure périphérique (3) disposée au centre dans la direction axiale A et, de chaque côté de cette rainure périphérique (3), au moins deux rangées (8, 9, 10, 11) de blocs profilés disposées l'une à côté de l'autre dans la direction axiale A et séparées l'une de l'autre par une rainure périphérique (5, 6),
    les rangées étant formées d'éléments (12, 13, 14, 15) de bloc profilé disposés les uns derrière les autres dans la direction périphérique du bandage de roue de véhicule et étant séparés les uns des autres par des rainures obliques (16, 17, 18, 19),
    chaque élément (12, 13, 14, 15) de bloc profilé d'une rangée (8, 9, 10, 11) de blocs profilés étant délimité tant dans la première que dans la deuxième orientation périphérique par un flanc qui forme la paroi, orientée vers l'élément (12, 13, 14, 15) de bloc profilé, de la rainure oblique (16, 17, 18, 19) qui délimite l'élément (12, 13, 14, 15) de bloc profilé dans l'orientation périphérique concernée,
    les rainures obliques (16, 17, 18, 19) débouchant dans la direction axiale A dans les deux rainures périphériques (4, 5, 6, 7) qui délimitent la rangée (8, 9, 10, 11) de blocs profilés concernée dans la direction axiale A et s'étendant de façon inclinée dans la première et donc la même orientation périphérique en formant un angle d'inclinaison α, 80° > α > 10°, par rapport à la direction axiale A, le long de son extension axiale dans la direction axiale A non orientée vers la rainure périphérique centrale (3) en s'éloignant de la rangée (8, 9, 10, 11) de blocs profilés,
    chacun des éléments (12, 13, 14, 15) de bloc profilé de la rangée (9, 10) de blocs profilés étant relié par une nervure (24, 25, 26, 27) qui traverse la rainure périphérique (5, 3, 6) (24, 25, 26, 27) à un élément (12, 13, 14, 15) de bloc profilé d'une rangée (9, 10) voisine de blocs profilés,
    caractérisé en ce que
    le flanc (20, 21, 22, 23) qui délimite chacun des éléments (12, 13, 14, 15) de bloc profilé d'une rangée (8, 9, 10, 11) de blocs profilés dans la direction périphérique U respectivement avec son un, dans la même orientation dans la direction axiale A en direction de la rainure périphérique centrale (3), et qui s'étend en traversant la rainure périphérique (5, 3, 6) qui délimite la rangée concernée (8, 9, 10, 11) de blocs profilés jusqu'à la rangée voisine (9, 10) de blocs profilés, est configuré comme flanc (20, 21, 22, 23) d'une nervure (24, 25, 26, 27) qui relie l'élément (12, 13, 14, 15) de bloc profilé à un élément (12, 13, 14, 15) de bloc profilé de la rangée voisine (9, 10) de blocs profilés à travers la rainure périphérique (5, 3, 6),
    cette nervure (24, 25, 26, 27) reliant l'élément (13, 14) de blocs profilés de la rangée voisine (9, 10) de blocs profilés à une distance, mesurée dans la direction périphérique U, par rapport aux rainures obliques (17, 18) qui délimitent cet élément (13, 14) de blocs profilés de la rangée voisine (9, 10) de blocs profilés.
  2. Profil de bande de roulement selon les caractéristiques de la revendication 1, dans lequel le flanc (20, 21, 22, 23) qui délimite chacun des éléments (12, 13, 14, 15) de bloc profilé d'une rangée (8, 9, 10, 11) de blocs profilés dans la direction périphérique U du côté tourné vers la deuxième orientation dans la direction axiale A en direction de la rainure périphérique centrale (3) et qui s'étend en traversant la rainure périphérique (5, 3, 6) qui délimite la rangée concernée (8, 9, 10, 11) de blocs profilés jusqu'à la rangée voisine (9, 10) de blocs profilés, est configuré comme flanc (20, 21, 22, 23) d'une nervure (24, 25, 26, 27) qui relie l'élément (12, 13, 14, 15) de bloc profilé à un élément (12, 13, 14, 15) de bloc profilé de la rangée voisine (9, 10) de blocs profilés à travers la rainure périphérique (5, 3, 6).
  3. Profil de bande de roulement selon les caractéristiques des revendications 1 ou 2, dans lequel le flanc (20, 21, 22, 23) qui délimite l'élément (12, 13, 14, 15) de bloc profilé et la nervure (24, 25, 26, 27) est rectiligne sur toute son extension axiale dans la surface radialement extérieure.
  4. Profil de bande de roulement selon les caractéristiques d'une ou plusieurs des revendications précédentes, dans lequel la largeur maximale b de la nervure (24, 25, 26, 27), mesurée perpendiculairement à la direction de l'extension du flanc (20, 21, 22, 23) à travers la rainure périphérique (5, 3, 6) présente dans la surface qui délimite radialement vers l'extérieur la nervure (24, 25, 26, 27) vérifie la relation (1/5)B ≤ b ≤ (1/2)B, B étant la largeur maximale, mesurée dans la direction axiale A du bandage de roue dans la surface radialement extérieure de la rangée (8, 9, 10, 11) de blocs profilés.
  5. Profil de bande de roulement selon les caractéristiques d'une ou plusieurs des revendications précédentes, dans lequel la largeur maximale b de la nervure (24, 25, 26, 27), mesurée dans la surface qui délimite radialement à l'extérieur la nervure (24, 25, 26, 27), vérifie la relation 5 mm ≤ b ≤ 10 mm.
  6. Profil de bande de roulement selon les caractéristiques d'une ou plusieurs des revendications précédentes, dans lequel la nervure (24, 25, 26, 27) présente une hauteur h, mesurée dans la direction radiale R en partant du fond (29) de la rainure qui délimite radialement vers l'intérieur la rainure périphérique (5, 3, 6) avec (1/2)PT ≤ h ≤ PT, PT étant la profondeur du profilé de la rainure périphérique (5, 3, 6) mesurée dans la direction radiale R.
  7. Profil de bande de roulement selon les caractéristiques d'une ou plusieurs des revendications précédentes, dans lequel l'angle d'inclinaison α vérifie la relation 45° ≤ α ≤ 70° et en particulier α = 60°.
  8. Profil de bande de roulement selon les caractéristiques d'une ou plusieurs des revendications précédentes, dans lequel la largeur B2 de la rainure oblique (16, 17, 18, 19) vérifie dans son extension dans la surface radialement extérieure la relation B2 ≤ B1, B1 étant la largeur de la rainure périphérique (5, 3, 6) dans son extension dans la direction périphérique U dans la surface radialement extérieure dans laquelle la rainure oblique (16, 17, 18, 19) débouche dans la direction axiale A dans la rainure périphérique centrale (5, 3, 6).
  9. Profil de bande de roulement selon les caractéristiques d'une ou plusieurs des revendications précédentes, dans lequel la largeur B1 de la rainure périphérique (5, 3, 6) dans son extension dans la direction périphérique dans la surface radialement extérieure vérifie la relation 5 mm ≤ B1 ≤ 12 mm.
  10. Profil de bande de roulement selon les caractéristiques d'une ou plusieurs des revendications précédentes, dans lequel la largeur B2 de la rainure oblique (16, 17, 18, 19) dans son extension dans la direction périphérique dans la surface radialement extérieure vérifie la relation 4 mm ≤ B2 ≤ 6 mm.
EP12176793.3A 2011-08-12 2012-07-18 Pneus de véhicule Active EP2556971B1 (fr)

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DE201110052684 DE102011052684A1 (de) 2011-08-12 2011-08-12 Fahrzeugluftreifen

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DE102015205718A1 (de) * 2015-03-30 2016-10-06 Continental Reifen Deutschland Gmbh Fahrzeugluftreifen
DE102017203219A1 (de) 2017-02-28 2018-08-30 Continental Reifen Deutschland Gmbh Fahrzeugluftreifen
FR3126923B1 (fr) * 2021-09-10 2024-01-19 Michelin & Cie Pneumatique pour bus urbain comprenant une bande de roulement à adhérence améliorée

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Publication number Priority date Publication date Assignee Title
US5088536A (en) * 1990-05-10 1992-02-18 The Goodyear Tire & Rubber Company All season type tire tread
CA2054991A1 (fr) * 1991-03-08 1992-09-09 William Eugene Glover Pneu de resistance superieure a l'usure irreguliere
AT400424B (de) * 1993-01-28 1995-12-27 Semperit Ag Fahrzeugreifen

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EP2556971A2 (fr) 2013-02-13
EP2556971A3 (fr) 2013-10-23

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